Protagonist Launched!!

The protagonist, Haru Shinkai, is led to acquire the Appli Drive, and uses it to materialize Gacchimon, a search app monster. What is the secret hidden within the Appli Drive? What is the mysterious field that exists between net world where the Appmon exist, and the real world? What is the “App Combine” that can combine two Appmons? What is Leviathan’s true goal?